 鲜花( 0)  鸡蛋( 0)
|
there are a few kinds of BH that help cars start from extreme cold weather,' z( w* T* E8 s+ [$ a
basically , BH keep the car warm by heating up the oil pan-which keeps the engine oil from frozen, or by heating up the coolant, and keep the engine block warm.
; Q# T' ?/ U6 WEither way, the engine shall not be frozen with use of BH.+ M. O' f( Z7 j8 Z U
7 T" g9 v0 z' w. E% k0 c" X8 CIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.
U8 y f: u8 A' B$ [7 KA good synthetic oil, 5w20 or 5w 30 , or 3w 20 has a pure point of -30 to -40 degrees. |
|